/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Netscape Public License
 * Version 1.1 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://www.mozilla.org/NPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Mozilla Communicator client code.
 *
 * The Initial Developer of the Original Code is 
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 * Alec Flett <alecf@netscape.com>
 * Brian Nesse <bnesse@netscape.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or 
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the NPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the NPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "nsISupports.idl"

/**
 * The nsIPrefLocalizedString interface is simply a wrapper interface for
 * nsISupportsString so the preferences service can have a unique identifier
 * to distinguish between requests for normal wide strings (nsISupportsString)
 * and "localized" wide strings, which get their default values from properites
 * files.
 *
 * @see nsIPrefBranch
 * @see nsISupportsString
 * 
 * @status FROZEN
 */

[scriptable, uuid(ae419e24-1dd1-11b2-b39a-d3e5e7073802)]
interface nsIPrefLocalizedString : nsISupports
{
  /**
   * Provides access to string data stored in this property.
   *
   * @return NS_OK The operation succeeded.
   * @return Other An error occured.
   */
  attribute wstring data;

  /**
   * Used to retrieve the contents of this object into a wide string.
   *
   * @return wstring The string containing the data stored within this object.
   */
  wstring toString();

  /**
   * Used to set the contents of this object.
   *
   * @param length The length of the string. This value should not include
   *               space for the null terminator, nor should it account for the
   *               size of a character. It should  only be the number of
   *               characters for which there is space in the string.
   * @param data   The string data to be stored.
   *
   * @note
   * This makes a copy of the string argument passed in.
   *
   * @return NS_OK The data was successfully stored.
   */
  void setDataWithLength(in unsigned long length,
                         [size_is(length)] in wstring data);
};

%{C++

#define NS_PREFLOCALIZEDSTRING_CID                     \
  { /* {064d9cee-1dd2-11b2-83e3-d25ab0193c26} */       \
    0x064d9cee,                                        \
    0x1dd2,                                            \
    0x11b2,                                            \
    { 0x83, 0xe3, 0xd2, 0x5a, 0xb0, 0x19, 0x3c, 0x26 } \
  }

#define NS_PREFLOCALIZEDSTRING_CONTRACTID "@mozilla.org/pref-localizedstring;1"
#define NS_PREFLOCALIZEDSTRING_CLASSNAME "Pref LocalizedString"

%}
